D2 IDENTICAL OR FRATERNAL-PQ

Variable Description

Name
PD2
Label
D2 IDENTICAL OR FRATERNAL-PQ
Dataset
parent1

Summary Statistics for 'PD2'

Value Valid Label Frequency % of Valid % of All
. Missing missing 3,232
15.58%
1 Valid definitely identical 357
25.96%
1.72%
2 Valid probably identical 68
4.95%
0.33%
3 Valid definitely fraternal 870
63.27%
4.19%
4 Valid probably fraternal 80
5.82%
0.39%
6 Missing refused 6
0.03%
7 Missing legitimate skip 16,114
77.68%
8 Missing don't know 18
0.09%
Total Responses Valid Invalid Min Max
20745 1375 19370 1 4

Representation

Representation Type
Code List
Selection Style
SelectOne
Measurement Unit
numeric
Measurement Unit
numeric
Aggregation Method
Unspecified
Temporal
False
Geographic
False

Source Questions

PD2

Lineage

  • Parents (1995) - PD2
    D2 IDENTICAL OR FRATERNAL-PQ
    • PD2
      2. In your opinion are {NAME} and {NAME} identical twins or fraternal tw ins?

Concordance

definitely identical
probably identical
definitely fraternal
probably fraternal
definitely identical
probably identical
definitely fraternal
probably fraternal
Dataset Variable Valid Invalid Min First Quartile Median Third Quartile Max Mean StdDev
definitely identical
probably identical
definitely fraternal
probably fraternal